The P-F curve is supposed to give you time—a window between potential failure (P) and functional failure (F). But if your team doesn’t detect issues early or ignores the data, you don’t have a curve—you have a cliff. This cartoon perfectly captures the sarcasm and sadness of reactive maintenance cultures where every failure is a surprise party.
Real reliability means building detection capabilities, defining lead times, and acting before the breakdown hits. If failure always wins in your plant, it’s time to stop aspiring and start trending.









